package lesson09;

public class Test02 {
    public static void main(String[] args) {
        int a = 100;
        Integer a1 = Integer.valueOf(a);
        int a2 = a1.intValue();

        double d = 50.5;
        Double d1 = d;
        double d2 = d1;

        Float f = 10.5F;
        float f1 = new Float(10.5);

        Object [] objs = new Object[5];
        objs[0] = 100;

        System.out.println(Integer.parseInt("abc"));
    }
}
